// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/examples/single_split_view_example.h"

#include "base/macros.h"
#include "ui/views/background.h"
#include "ui/views/controls/single_split_view.h"
#include "ui/views/layout/grid_layout.h"

namespace views {
namespace examples {
    namespace {

        // SingleSplitView's content, which draws gradient color on background.
        class SplittedView : public View {
        public:
            SplittedView();
            ~SplittedView() override;

            void SetColor(SkColor from, SkColor to);

        private:
            // View:
            gfx::Size GetPreferredSize() const override;
            gfx::Size GetMinimumSize() const override;
            void Layout() override;

            DISALLOW_COPY_AND_ASSIGN(SplittedView);
        };

        SplittedView::SplittedView()
        {
            SetColor(SK_ColorRED, SK_ColorGREEN);
        }

        SplittedView::~SplittedView()
        {
        }

        void SplittedView::SetColor(SkColor from, SkColor to)
        {
            set_background(Background::CreateVerticalGradientBackground(from, to));
        }

        gfx::Size SplittedView::GetPreferredSize() const
        {
            return gfx::Size(width(), height());
        }

        gfx::Size SplittedView::GetMinimumSize() const
        {
            return gfx::Size(10, 10);
        }

        void SplittedView::Layout()
        {
            SizeToPreferredSize();
        }

    } // namespace

    SingleSplitViewExample::SingleSplitViewExample()
        : ExampleBase("Single Split View")
    {
    }

    SingleSplitViewExample::~SingleSplitViewExample()
    {
    }

    void SingleSplitViewExample::CreateExampleView(View* container)
    {
        SplittedView* splitted_view_1 = new SplittedView;
        SplittedView* splitted_view_2 = new SplittedView;

        splitted_view_1->SetColor(SK_ColorYELLOW, SK_ColorCYAN);

        single_split_view_ = new SingleSplitView(
            splitted_view_1, splitted_view_2,
            SingleSplitView::HORIZONTAL_SPLIT,
            this);

        GridLayout* layout = new GridLayout(container);
        container->SetLayoutManager(layout);

        ColumnSet* column_set = layout->AddColumnSet(0);
        column_set->AddColumn(GridLayout::FILL, GridLayout::FILL, 1,
            GridLayout::USE_PREF, 0, 0);
        layout->StartRow(1, 0);
        layout->AddView(single_split_view_);
    }

    bool SingleSplitViewExample::SplitHandleMoved(SingleSplitView* sender)
    {
        PrintStatus("Splitter moved");
        return true;
    }

} // namespace examples
} // namespace views
